Dual lens camera

Details Dual lens camera Dual lens camera

1984-03-13

1985-07-09

Gonzales, John

G03B 300

Patent

active

045278741

ABSTRACT:
A dual lens camera having a relatively long focus lens and a relatively short focus lens either one of which is selected for telephotographing and wide angle photographing is provided with a movable mirror and an exposure aperture located behind the short focus lens, and a fixed mirror located behind the long focus lens with an angle of inclination more than a right angle relative to the optical axis thereof. Upon wide angle photographing, the light passed through the short focus lens can travels straightly to the exposure aperture. When selecting the long focus lens to effecting telephotographing, the movable mirror is pivoted to position in front of the exposure aperture so as to reflect the reflected light by the fixed mirror and thereby organize a Z-shaped optical path for the long focus lens. Simultaneously, the short focus lens is shifted in the direction perpendicular to the optical axis thereof for the purpose of the pivotal movement of the movable mirror without any interference therewith.

REFERENCES:
patent: 4341449 (1982-07-01), Iwata et al.
patent: 4352546 (1982-10-01), Iwata et al.

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